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250 lines
9 KiB
Rust
250 lines
9 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::activation::Activatable;
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use dom::attr::Attr;
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use dom::bindings::codegen::Bindings::HTMLButtonElementBinding;
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use dom::bindings::codegen::Bindings::HTMLButtonElementBinding::HTMLButtonElementMethods;
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use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLButtonElementCast, HTMLElementCast, NodeCast};
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use dom::bindings::codegen::InheritTypes::{HTMLButtonElementDerived, HTMLFieldSetElementDerived};
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use dom::bindings::js::Root;
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use dom::document::Document;
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use dom::element::{AttributeMutation, Element, ElementTypeId};
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use dom::event::Event;
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use dom::eventtarget::{EventTarget, EventTargetTypeId};
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use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
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use dom::htmlformelement::{FormControl, FormSubmitter};
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use dom::htmlformelement::{SubmittedFrom, HTMLFormElement};
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use dom::node::{Node, NodeTypeId, document_from_node, window_from_node};
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use dom::validitystate::ValidityState;
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use dom::virtualmethods::VirtualMethods;
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use std::ascii::AsciiExt;
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use std::borrow::ToOwned;
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use std::cell::Cell;
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use util::str::DOMString;
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#[derive(JSTraceable, PartialEq, Copy, Clone)]
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#[allow(dead_code)]
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#[derive(HeapSizeOf)]
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enum ButtonType {
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ButtonSubmit,
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ButtonReset,
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ButtonButton,
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ButtonMenu
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}
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#[dom_struct]
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pub struct HTMLButtonElement {
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htmlelement: HTMLElement,
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button_type: Cell<ButtonType>
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}
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impl HTMLButtonElementDerived for EventTarget {
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fn is_htmlbuttonelement(&self) -> bool {
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*self.type_id() ==
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EventTargetTypeId::Node(
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NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLButtonElement)))
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}
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}
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impl HTMLButtonElement {
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fn new_inherited(localName: DOMString,
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prefix: Option<DOMString>,
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document: &Document) -> HTMLButtonElement {
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HTMLButtonElement {
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htmlelement:
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HTMLElement::new_inherited(HTMLElementTypeId::HTMLButtonElement, localName, prefix, document),
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//TODO: implement button_type in attribute_mutated
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button_type: Cell::new(ButtonType::ButtonSubmit)
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(localName: DOMString,
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prefix: Option<DOMString>,
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document: &Document) -> Root<HTMLButtonElement> {
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let element = HTMLButtonElement::new_inherited(localName, prefix, document);
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Node::reflect_node(box element, document, HTMLButtonElementBinding::Wrap)
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}
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}
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impl HTMLButtonElementMethods for HTMLButtonElement {
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// https://html.spec.whatwg.org/multipage/#dom-cva-validity
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fn Validity(&self) -> Root<ValidityState> {
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let window = window_from_node(self);
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ValidityState::new(window.r())
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}
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// https://html.spec.whatwg.org/multipage#dom-fe-disabled
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make_bool_getter!(Disabled);
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// https://html.spec.whatwg.org/multipage#dom-fe-disabled
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make_bool_setter!(SetDisabled, "disabled");
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// https://html.spec.whatwg.org/multipage#dom-fae-form
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fn GetForm(&self) -> Option<Root<HTMLFormElement>> {
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self.form_owner()
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}
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// https://html.spec.whatwg.org/multipage/#dom-button-type
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fn Type(&self) -> DOMString {
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let elem = ElementCast::from_ref(self);
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let mut ty = elem.get_string_attribute(&atom!("type"));
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ty.make_ascii_lowercase();
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// https://html.spec.whatwg.org/multipage/#attr-button-type
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match &*ty {
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"reset" | "button" | "menu" => ty,
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_ => "submit".to_owned()
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}
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}
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// https://html.spec.whatwg.org/multipage/#dom-button-type
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make_setter!(SetType, "type");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formaction
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make_url_or_base_getter!(FormAction);
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// https://html.spec.whatwg.org/multipage/#dom-fs-formaction
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make_setter!(SetFormAction, "formaction");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formenctype
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make_enumerated_getter!(
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FormEnctype, "application/x-www-form-urlencoded", ("text/plain") | ("multipart/form-data"));
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// https://html.spec.whatwg.org/multipage/#dom-fs-formenctype
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make_setter!(SetFormEnctype, "formenctype");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formmethod
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make_enumerated_getter!(FormMethod, "get", ("post") | ("dialog"));
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// https://html.spec.whatwg.org/multipage/#dom-fs-formmethod
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make_setter!(SetFormMethod, "formmethod");
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// https://html.spec.whatwg.org/multipage/#dom-fs-formtarget
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make_getter!(FormTarget);
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// https://html.spec.whatwg.org/multipage/#dom-fs-formtarget
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make_setter!(SetFormTarget, "formtarget");
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// https://html.spec.whatwg.org/multipage/#dom-fe-name
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make_getter!(Name);
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// https://html.spec.whatwg.org/multipage/#dom-fe-name
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make_setter!(SetName, "name");
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// https://html.spec.whatwg.org/multipage/#dom-button-value
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make_getter!(Value);
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// https://html.spec.whatwg.org/multipage/#dom-button-value
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make_setter!(SetValue, "value");
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}
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impl VirtualMethods for HTMLButtonElement {
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fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
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let htmlelement: &HTMLElement = HTMLElementCast::from_ref(self);
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Some(htmlelement as &VirtualMethods)
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}
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fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
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self.super_type().unwrap().attribute_mutated(attr, mutation);
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match attr.local_name() {
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&atom!(disabled) => {
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let node = NodeCast::from_ref(self);
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match mutation {
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AttributeMutation::Set(Some(_)) => {}
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AttributeMutation::Set(None) => {
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node.set_disabled_state(true);
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node.set_enabled_state(false);
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},
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AttributeMutation::Removed => {
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node.set_disabled_state(false);
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node.set_enabled_state(true);
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node.check_ancestors_disabled_state_for_form_control();
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}
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}
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},
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_ => {},
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}
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}
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fn bind_to_tree(&self, tree_in_doc: bool) {
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if let Some(ref s) = self.super_type() {
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s.bind_to_tree(tree_in_doc);
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}
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let node = NodeCast::from_ref(self);
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node.check_ancestors_disabled_state_for_form_control();
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}
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fn unbind_from_tree(&self, tree_in_doc: bool) {
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if let Some(ref s) = self.super_type() {
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s.unbind_from_tree(tree_in_doc);
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}
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let node = NodeCast::from_ref(self);
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if node.ancestors().any(|ancestor| ancestor.r().is_htmlfieldsetelement()) {
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node.check_ancestors_disabled_state_for_form_control();
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} else {
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node.check_disabled_attribute();
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}
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}
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}
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impl FormControl for HTMLButtonElement {}
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impl<'a> Activatable for &'a HTMLButtonElement {
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fn as_element<'b>(&'b self) -> &'b Element {
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ElementCast::from_ref(*self)
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}
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fn is_instance_activatable(&self) -> bool {
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//https://html.spec.whatwg.org/multipage/#the-button-element
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let node = NodeCast::from_ref(*self);
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!(node.get_disabled_state())
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}
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// https://html.spec.whatwg.org/multipage/#run-pre-click-activation-steps
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// https://html.spec.whatwg.org/multipage/#the-button-element:activation-behavior
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fn pre_click_activation(&self) {
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}
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// https://html.spec.whatwg.org/multipage/#run-canceled-activation-steps
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fn canceled_activation(&self) {
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}
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// https://html.spec.whatwg.org/multipage/#run-post-click-activation-steps
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fn activation_behavior(&self, _event: &Event, _target: &EventTarget) {
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let ty = self.button_type.get();
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match ty {
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//https://html.spec.whatwg.org/multipage/#attr-button-type-submit-state
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ButtonType::ButtonSubmit => {
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self.form_owner().map(|o| {
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o.r().submit(SubmittedFrom::NotFromFormSubmitMethod,
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FormSubmitter::ButtonElement(self.clone()))
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});
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},
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_ => ()
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}
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}
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// https://html.spec.whatwg.org/multipage/#implicit-submission
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#[allow(unsafe_code)]
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fn implicit_submission(&self, ctrlKey: bool, shiftKey: bool, altKey: bool, metaKey: bool) {
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let doc = document_from_node(*self);
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let node = NodeCast::from_ref(doc.r());
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let owner = self.form_owner();
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let elem = ElementCast::from_ref(*self);
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if owner.is_none() || elem.click_in_progress() {
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return;
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}
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// This is safe because we are stopping after finding the first element
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// and only then performing actions which may modify the DOM tree
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unsafe {
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node.query_selector_iter("button[type=submit]".to_owned()).unwrap()
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.filter_map(HTMLButtonElementCast::to_root)
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.find(|r| r.r().form_owner() == owner)
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.map(|s| s.r().synthetic_click_activation(ctrlKey, shiftKey, altKey, metaKey));
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}
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}
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}
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